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Finding the Fourth Proportional to 42,475, 63,712.50 and 14,773

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Solution

The fourth proportional to 42,475, 63,712.50 and 14,773 is: 22,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,475 : 63,712.50 = 14,773 : x
  2. Step 2: Convert to fraction form
    42,475/63,712.50 = 14,773/x
  3. Step 3: Cross multiply
    42,475x = 63,712.50 × 14,773
  4. Step 4: Simplify right side
    42,475x = 941,224,762.50
  5. Step 5: Solve for x
    x = 941,224,762.50/42,475
  6. Step 6: Final answer
    x = 22,159.50

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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.