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Finding the Fourth Proportional to 19,042.98, 28,570.95 and 9,802.50

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Solution

The fourth proportional to 19,042.98, 28,570.95 and 9,802.50 is: 14,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.98 : 28,570.95 = 9,802.50 : x
  2. Step 2: Convert to fraction form
    19,042.98/28,570.95 = 9,802.50/x
  3. Step 3: Cross multiply
    19,042.98x = 28,570.95 × 9,802.50
  4. Step 4: Simplify right side
    19,042.98x = 280,066,737.38
  5. Step 5: Solve for x
    x = 280,066,737.38/19,042.98
  6. Step 6: Final answer
    x = 14,707.09

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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.