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Finding the Fourth Proportional to 61,344.47, 84,602.88 and 42,254.69

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Solution

The fourth proportional to 61,344.47, 84,602.88 and 42,254.69 is: 58,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,344.47 : 84,602.88 = 42,254.69 : x
  2. Step 2: Convert to fraction form
    61,344.47/84,602.88 = 42,254.69/x
  3. Step 3: Cross multiply
    61,344.47x = 84,602.88 × 42,254.69
  4. Step 4: Simplify right side
    61,344.47x = 3,574,868,361.75
  5. Step 5: Solve for x
    x = 3,574,868,361.75/61,344.47
  6. Step 6: Final answer
    x = 58,275.32

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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.