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Finding the Fourth Proportional to 42,973.93, 64,461.75 and 14,894.90

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Solution

The fourth proportional to 42,973.93, 64,461.75 and 14,894.90 is: 22,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,973.93 : 64,461.75 = 14,894.90 : x
  2. Step 2: Convert to fraction form
    42,973.93/64,461.75 = 14,894.90/x
  3. Step 3: Cross multiply
    42,973.93x = 64,461.75 × 14,894.90
  4. Step 4: Simplify right side
    42,973.93x = 960,151,183.64
  5. Step 5: Solve for x
    x = 960,151,183.64/42,973.93
  6. Step 6: Final answer
    x = 22,342.64

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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.