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Finding the Fourth Proportional to 76,024.51, 104,913.56 and 42,490.51

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Solution

The fourth proportional to 76,024.51, 104,913.56 and 42,490.51 is: 58,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,024.51 : 104,913.56 = 42,490.51 : x
  2. Step 2: Convert to fraction form
    76,024.51/104,913.56 = 42,490.51/x
  3. Step 3: Cross multiply
    76,024.51x = 104,913.56 × 42,490.51
  4. Step 4: Simplify right side
    76,024.51x = 4,457,830,670.32
  5. Step 5: Solve for x
    x = 4,457,830,670.32/76,024.51
  6. Step 6: Final answer
    x = 58,636.76

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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.