Home / 25,000.84-34,501.20-13,670.16

Finding the Fourth Proportional to 25,000.84, 34,501.20 and 13,670.16

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Solution

The fourth proportional to 25,000.84, 34,501.20 and 13,670.16 is: 18,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,000.84 : 34,501.20 = 13,670.16 : x
  2. Step 2: Convert to fraction form
    25,000.84/34,501.20 = 13,670.16/x
  3. Step 3: Cross multiply
    25,000.84x = 34,501.20 × 13,670.16
  4. Step 4: Simplify right side
    25,000.84x = 471,636,924.19
  5. Step 5: Solve for x
    x = 471,636,924.19/25,000.84
  6. Step 6: Final answer
    x = 18,864.84

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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.