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Finding the Fourth Proportional to 42,674.47, 64,004.95 and 14,594.47

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Solution

The fourth proportional to 42,674.47, 64,004.95 and 14,594.47 is: 21,889.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,674.47 : 64,004.95 = 14,594.47 : x
  2. Step 2: Convert to fraction form
    42,674.47/64,004.95 = 14,594.47/x
  3. Step 3: Cross multiply
    42,674.47x = 64,004.95 × 14,594.47
  4. Step 4: Simplify right side
    42,674.47x = 934,117,966.12
  5. Step 5: Solve for x
    x = 934,117,966.12/42,674.47
  6. Step 6: Final answer
    x = 21,889.39

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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.