Home / 7,220.13-9,960.08-4,706.45

Finding the Fourth Proportional to 7,220.13, 9,960.08 and 4,706.45

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Solution

The fourth proportional to 7,220.13, 9,960.08 and 4,706.45 is: 6,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.13 : 9,960.08 = 4,706.45 : x
  2. Step 2: Convert to fraction form
    7,220.13/9,960.08 = 4,706.45/x
  3. Step 3: Cross multiply
    7,220.13x = 9,960.08 × 4,706.45
  4. Step 4: Simplify right side
    7,220.13x = 46,876,580.48
  5. Step 5: Solve for x
    x = 46,876,580.48/7,220.13
  6. Step 6: Final answer
    x = 6,492.48

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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.