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Finding the Fourth Proportional to 38,988,976.02, 53,804,800.02 and 21,348,994.26

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Solution

The fourth proportional to 38,988,976.02, 53,804,800.02 and 21,348,994.26 is: 29,461,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,976.02 : 53,804,800.02 = 21,348,994.26 : x
  2. Step 2: Convert to fraction form
    38,988,976.02/53,804,800.02 = 21,348,994.26/x
  3. Step 3: Cross multiply
    38,988,976.02x = 53,804,800.02 × 21,348,994.26
  4. Step 4: Simplify right side
    38,988,976.02x = 1,148,678,366,787,428
  5. Step 5: Solve for x
    x = 1,148,678,366,787,428/38,988,976.02
  6. Step 6: Final answer
    x = 29,461,619.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.