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Finding the Fourth Proportional to 42,706.71, 64,070.07 and 14,627.07

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Solution

The fourth proportional to 42,706.71, 64,070.07 and 14,627.07 is: 21,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,706.71 : 64,070.07 = 14,627.07 : x
  2. Step 2: Convert to fraction form
    42,706.71/64,070.07 = 14,627.07/x
  3. Step 3: Cross multiply
    42,706.71x = 64,070.07 × 14,627.07
  4. Step 4: Simplify right side
    42,706.71x = 937,157,398.79
  5. Step 5: Solve for x
    x = 937,157,398.79/42,706.71
  6. Step 6: Final answer
    x = 21,944.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.